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Diffstat (limited to 'docs/ReleaseNotes.rst')
| -rw-r--r-- | docs/ReleaseNotes.rst | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index 982abb0245..9d7bbad7bb 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -58,6 +58,25 @@ Improvements to Clang's diagnostics - -Wunused-lambda-capture warns when a variable explicitly captured by a lambda is not used in the body of the lambda. +- -Wstrict-prototypes is a new warning that warns about non-prototype + function and block declarations and types in C and Objective-C. + +- -Wunguarded-availability is a new warning that warns about uses of new + APIs that were introduced in a system whose version is newer than the + deployment target version. A new Objective-C expression ``@available`` has + been introduced to perform system version checking at runtime. This warning + is off by default to prevent unexpected warnings in existing projects. + However, its less strict sibling -Wunguarded-availability-new is on by + default. It warns about unguarded uses of APIs only when they were introduced + in or after macOS 10.13, iOS 11, tvOS 11 or watchOS 4. + +- The -Wdocumentation warning now allows the use of ``\param`` and + ``\returns`` documentation directives in the documentation comments for + declarations with a function or a block pointer type. + +- The compiler no longer warns about unreachable ``__builtin_unreachable`` + statements. + New Compiler Flags ------------------ |